Wiring harness 21 circuit EZ. All EZ wiring kits use GXL 125 high temp cross linked polyethylene jacketed wire that is grease, oil, gas, and acid resistant. Each wire is labeled every 5″ Its entire length so checking a circuit is easy. Color coded wire. Each circuit wire is labeled so you know exactly where it goes. EZier to wire. EZier to trouble shoot. The kit contains 18 fuses and 21 circuits. Sold as kit.